将下列句子改成一般疑问句,并作肯定及否定回答.Tom and Bob are listening to the radio .

问题描述:

将下列句子改成一般疑问句,并作肯定及否定回答.Tom and Bob are listening to the radio .

Are Tom and Bob listening to the radio ?
yes,they are
no,they aren't

Are Tom and Bob listening to the radio?
Yes,they are.
No,they aren't.